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Mon, 21 Nov 2022 06:50:32 +0000 From: Jacky Bai To: lee@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, dmitry.torokhov@gmail.com, a.zummo@towertech.it, alexandre.belloni@bootlin.com Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org, linux-rtc@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com, festevam@gmail.com Subject: [PATCH 1/4] dt-bindings: mfd: nxp,bbnsm: Add binding for nxp bbnsm Date: Mon, 21 Nov 2022 14:51:41 +0800 Message-Id: <20221121065144.3667658-2-ping.bai@nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20221121065144.3667658-1-ping.bai@nxp.com> References: <20221121065144.3667658-1-ping.bai@nxp.com> X-ClientProxiedBy: SG2PR02CA0123.apcprd02.prod.outlook.com (2603:1096:4:188::22) To AS8PR04MB8642.eurprd04.prod.outlook.com (2603:10a6:20b:429::24) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AS8PR04MB8642:EE_|AM7PR04MB7142:EE_ X-MS-Office365-Filtering-Correlation-Id: 970c775f-e57f-483f-9dee-08dacb8caf68 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Jacky Bai --- .../devicetree/bindings/mfd/nxp,bbnsm.yaml | 103 ++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/nxp,bbnsm.yaml diff --git a/Documentation/devicetree/bindings/mfd/nxp,bbnsm.yaml b/Documentation/devicetree/bindings/mfd/nxp,bbnsm.yaml new file mode 100644 index 000000000000..b3f22b0daea6 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/nxp,bbnsm.yaml @@ -0,0 +1,103 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/nxp,bbnsm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP Battery-Backed Non-Secure Module bindings + +maintainers: + - Jacky Bai + +description: | + NXP BBNSM serves as non-volatile logic and storage for the system. + it Intergrates RTC & ON/OFF control. + The RTC can retain its state and continues counting even when the + main chip is power down. A time alarm is generated once the most + significant 32 bits of the real-time counter match the value in the + Time Alarm register. + The ON/OFF logic inside the BBNSM allows for connecting directly to + a PMIC or other voltage regulator device. both smart PMIC mode and + Dumb PMIC mode supported. + +properties: + compatible: + items: + - enum: + - nxp,bbnsm + - const: syscon + - const: simple-mfd + + reg: + maxItems: 1 + + rtc: + type: object + + properties: + compatible: + const: nxp,bbnsm-rtc + + regmap: + maxItems: 1 + + interrupts: + maxItems: 1 + + required: + - compatible + - regmap + - interrupts + + additionalProperties: false + + pwrkey: + type: object + $ref: /schemas/input/input.yaml# + + properties: + compatible: + const: nxp,bbnsm-pwrkey + + regmap: + maxItems: 1 + + interrupts: + maxItems: 1 + + linux,code: true + + required: + - compatible + - regmap + - interrupts + + additionalProperties: false + +required: + - compatible + - reg + - rtc + - pwrkey + +additionalProperties: false + +examples: + - | + bbnsm: bbnsm@44440000 { + compatible = "nxp,bbnsm", "syscon", "simple-mfd"; + reg = <0x44440000 0x10000>; + + bbnsm_rtc: rtc { + compatible = "nxp,bbnsm-rtc"; + regmap = <&bbnsm>; + interrupts = ; + }; + + bbnsm_pwrkey: pwrkey { + compatible = "nxp,bbnsm-pwrkey"; + regmap = <&bbnsm>; + interrupts = ; + linux,code = ; + }; + };